Oscar katzenberger



N0. 626,!67. Patented May 30; I899.

0. KATZENBERGER.

LOCK.

(Application filed Sept. 7, 1898.) (No Model.)

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ETERS 0o, PHOTDJJTHQH WASHING mo E s l s M U W NITED STATES PATENT OFF CE.

OSCAR KATZENBERGER, OF SAN ANTONIO, TEXAS, ASSIGNOR OF ONE-HALF TO CHARLES MAX UI-IL, OF SAME PLACE.

LOCK.

SPECIFICATION forming part of Letters Patent No. 626,167, dated May 30, 1899.

Application filed September 7, 1898. Serial No. 690,395. (No model.)

To all whom it may concern:

Be it known that I, OSCAR KATZENBERGER, of San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Improvement in Locks, of which the following is a full, clear, and exact description;

My invention relates to combination-locks especially adapted for .use upon doors, but which maybe used wherever an ordinary lock is to be employed.

One of the objects of the invention is to so construct the improved lock that although tumblers are used, set according to a predetermined combination of figures with letters, the bolt and the latch can be operated from the same knob-spindle when the proper combination has been found, and whereby the combination of tumblers may be placed in such position that they will not act upon the bolt and wherein at that time the lock and latches may be operatedfrom the same spindle as readily as though the spindle were that upon an ordinary lock.

Another object of the invention is to provide an auxiliary bolt that is independent of the combination-controlled bolt and which may be brought into action at any time.

A further object of the invention is to provide a lock of the character above set forth that may be used without a key or constructed in such a manner that a key may be used to operatethe tumblers from the outside of the door, the key in such'instanoe being used in lieu of a knob.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings,formin g a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is an inner face view of the improved lock applied. Fig. 2 is a horizontal section through a portion of the door and one of the door-jambs, showing the lock in plan view. Fig.3 is a plan view of the lock separated from the door, illustrating the bolts Fig. 4 is a View simi-- within the lock-casing. I lar to Fig. 3, illustrating the main bolt as shot out or in looking position. Fig. 5 is a transverse section through the lock, taken practically on the line 5 5 of Fig.3. Fig. 6 is a section through the door and through one of the tumblers, the section being substantially on the line 6 6 of Fig. 1; and Fig. 7 is a perspective view of a key that may be used in connection with a lock.

A represents a lock-casing of any desired form. Usually, however, this casing is made rectangular.

B represents the main bolt, which is adapted to have sliding movement in the said casing and to extend out at the front edge thereof. The main locking-bolt B is provided with a longitudinal slot 10 at its heel or inner portion, and a screw 11 is passed through this slot into the casing, forming a guide for the bolt, and in addition to the guide-screw 11 a second guide 12, which is in the nature of avpin, is located below the bolt, being adapted to engage with its lower edge when the bolt is carried to its outer position, as illustrated in Fig. 4.

In the upper edge of the bolt, near its outer end, a substantially V-shaped recess 13 is made, and, furthermore, in the upper edge of the bolt, between the recess 13 and the inner end of the bolt, two cavities l4 and 15 are produced, while in the bottom edge of, the bolt three concavities 16, 17, and 18 are made, as shown in both Figs. 3 and 4. Upon the inner face of the bolt, justbelow the recess 13, a lug 19 i-slongitudinally formed, which lug at its forward end is provided with a reduced or depressed surface 20.

A spindle 21 is journaled in the casing just above the bolt, and '.the said spindle is providedwith a knob 22 at each of its ends outside of the lock-casing. The knob-spindle 21 is further provided with a finger or crankarm 23, which is adapted to enter the recess 13, and, by bearing upon the outer face of.

23 is limited by a pin 24, as shown in Figs.

3 and 4.

A latch-plate 25 is pivoted at the bolt B through the medium of the guide-screw 11 above mentioned, and at the inner end of the latch-plate 25 a head 26 is formed, one member 26 whereof extends above the bolt and a second member 2G extends below the bolt, the lower member 26 being continuous with or attached to a horizontal arm 27, which extends below the bolt B, as shown also in Figs. 3 and 4. The forward or outer end of the latch-plate 25 has a foot 28 formed thereon, which when the bolt is in its inner position or within the casing extends over the reduced surface 20 of the longitudinal lug 19 on the said bolt, as shown in Fig. 3, effectually preventing the bolt from being drawn outward.

A spring 29 is made to bear against the upper head-section 26 of the latch-plate at one end, the other end of the spring being secured in the lock-casing, and the tendency of the said spring is to carry the foot of the latch-plate away from the lug 19 on the bolt B, as shown in Fig. 4, and a second spring 30, carried by a suitable stud, is made to have bearing against the casing and against the upper edge of the bolt at its inner end, the spring 30 being adapted to steady the movement of the said bolt B.

The spring 29 has bearing upon a cam 31,

.which is preferably of oval shape and is pivoted in the forward upper corner of the easing above the bolt and its latch-plate, and a latch-head 32 is carried by the said cam, the

said head extending out through an opening in the casing in like manner as the bolt B, the latch 32 being beveled and corresponds to the ordinary spring-latch of a bolt. The latch has slight movement in the cam, and the cam at its forward lower edge is provided with a nose 33, against which the finger or crank-arm 2-3 of the knob-spindle may engage. The connection between the cam 31, which is in the nature of a bell-cranklever, is through the medium of a pin 32, secured to a latch 32, the said pin having limited movement in aslot3l" in the cam, as is shown in dotted lines in Figs. 3 and a. Fig. 3 also indicates in dotted lines the position of the cam when the latch is drawn within the lockcasing.

The bolt being in locking position and the finger of the knob-spindle in the position shown in Fig. -l-, when the knob of the spindle is turned to cause the finger to engagewith the rear wall of the slot 13 in the bolt the bolt will be carried inward, and when the bolt has reached its innermost position the said finger or crankarm 23 of the spindle maybe carried to an engagement with the cam 31 and will force the said cam upward, as shown in Fig. 3, thus drawing the latch within the casing, the nose 33 stopping the outward movement of the said finger or crank-arm 23 when the latch 32 is entirely drawn within the casing or drawn \vithinthe casing sufficiently to admit of the opening of the door. Then the 29 will return the latch 32 to its normal or out- The tumblers are identical in construction,

and one of these tumblers is shown in sectional detail in Fig. 6, wherein it will be observed that the tumbler consists of a disk 34, provided with a flat peripheral surface 35 and a semicircular flange 36, which is secured to the disk-base, the curved surface of the flange facing the flattened peripheral edge 35 of the disk-base, while the open portion of the flange faces the circular portion of the disk-face, as shown in Figs. 3 and 4:. A spindle 37 is passed through each of the rotary tumblers at the center, and the said spindles are passed through the casing of the lock, extending beyond both sides. The spindles of each rotary tumbler may be provided at both ends with a knob 38 or at the inner end only, as shown in Fig. 6, and the knob when employed is provided with a pointer 39, adapted to travel over a dial 40, which dial is in divisions, and the divisions are designated by letters, figures, or characters of any description, as shown in Fig. 1. XVhen, however, a knob 38 is secured to the inner end only of the spindle 37, an escutcheon 41 is secured upon the outer face of the door to which the lock is applied, the escutcheon being provided with a dial corresponding to the dial 40 on the outer face of the inner member of the look-casing, and the spindle 37 is then provided with a slot 42, as shown also in Fig. (3, in order that the spindle may be turned by any instrument that may be capable of being fitted into the said slot. A nut 42 is located upon the spindle 37 within the flange 36'and a spring 43 is located between the base-disk 3% of the rotary tumbler and the nut, while a second spring 44 is located above the nut and engages with the outer plate of the lock-casing. Thus it will be observed that when a tumbler is brought in engagement with any point on the bolt B the spindle may be turned so as to obtain the desired combination. It is evident that each rotary tumbler may be provided with a different combination or that all of them may be set on the same combination, as may be desired.

I11 operation, when the bolt is within its casing, as shown in Fig. 3, and the circular portions of the rotary tumblers enter the cavities in the lower edge of the bolt, the bolt cannot be forced outward, especially since when the circular portions of the tumblers enter the cavities in the bolt their flanges 36 will so ongage with the latch-plate 25 and its arm 27 as to force the foot of the latch-plate downward over the recessed portion 20 of the lug 19, thus providing an effective barrier against the outward movement of the bolt. When, however, the rotary tumblers are turned so as to present their flattenedsurfaces 35 to the bolt, as shown in Fig. 4, the flanges 36 of the tumbler will present their-flattened edges to the latch-plate and the bolt will be free to be shot outward to locking position by the movement of the knob-spindle 21, since the spring 29 will carry the latch-plate from locking engagement with the bolt. After the bolt is in its locking position by turning the disk tumblers so as to carry their flat surfaces away fromthe bolt and cause their central surfaces to enter adj acent. recesses in the bolt the bolt cannot be forced inward until the proper combination has been found to restore the tumblers to the position shown in Fig.4. When the bolt is locked in its outer position,

. the heel 28 of the latch-plate is forced downward at'the rear of the lug 19 on the bolt. It will be understood that the latch-plate is carried to locking position by engagement with the flanges of the tumblers, and when said flanges are out of engagement with the latch-plate the plate is raised by its spring 29.

In'the event a knob is not employed at both ends of the spindles controlling the rotary tumblers a key 46 may be employed (shown in Fig. 7) provided with a pointer 48 and a flattened end 47 adjacent to the pointer, the flattened end of the key being adapted to be entered into the slot 42 of the spindle and the pointer being used to obtain the necessary combination for placing the rotary tumbler carried by the disk in proper position to admit of the bolt being shot by the movement of the spindle 21.

In connection with the lock I also preferably employ an auxiliary bolt 43 independent of the bolt B, the auxiliary bolt 43 being provided with a spring 44, which ofiers a slight resistance to the movement of the bolt, and'with a finger-piece 45, which extends out through the lock-casing, as is best shown in Figs. 3 and 4. v

This lock is exceedingly simple, durable, and economic, is not at all liable to get out of order, and the combination of the rotary tumblers may be conveniently set.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. In a lock, a bolt, means for operating the bolt, rotary tumblers arranged to enter recesses in the bolt, devices for operating the said tumblers from the exterior of the lock, and a latch-plate for the bolt operated by the tu mblers, for the purpose set forth.

2. In a look, a bolt, means for operating the bolt, a keeper upon the bolt, a spring-controlled latch-plate adapted for engagement with the said keeper, the bolt being provided with recesses in its edges, and rotary tumblers operative from the exterior of the lock, which tumblers are adapted to enter the recesses in the bolt whether the bolt be. in its outer or in its inner position, and the said tumblers being also so constructed as to free the bolt from looking engagement therewith when necessary, for the purpose set forth.

8. A look provided with a tumbler-controlled bolt, a spring-latch, a knob-spindle, a projection from the knob-spindle arranged to operate the bolt and operate the latch on the return movement of the bolt, and means for operating the said tumblers from the exterior of the lock, for the purpose described.

4. In a lock, the combination, with a cas ing, a bolt held to slide in the said casing, having recesses in its upper and its lower edges, a keeper-lug secured upon one of its faces, and a pivoted spring-controlled locklatch arranged for engagement with the keeper of the bolt, of tumblers arranged to enter the recesses in the said bolt, means for operating the tumblers from the exterior ofthe lock, the said tumblers consisting of disks having a flattened peripheral surface, semi-' circular flanges secured upon the said disks, arranged to operate the said latch-plate, and spindles in connection Withwhich the tumblers are in frictional engagement, for the purpose specified. v r

5. In a lock, the'combination, with a casing, a main bolt and a locking-plate for the main bolt, of rotary tumblers adapted for lock in'g engagement with the main bolt and for actuating engagement with the latch, a spring* latch independent of the bolt, a knob-spindle, and means for operating the spring-latch and bolt from the said knob-spindle, for the purpose set forth.

OSCAR KATZENBERGERQ Witnesses:

A. A. GRAY, J. C. MEREDITH. 

